P141B01 - TroubleshootingP141B01-故障诊断

Fault code description故障码说明

DTC故障码(DTC)	Fault code description故障码描述	Possible cause of failure可能故障原因
P141B01	Both the positive and negative temperature sensors of AC charging failed.慢充正负极温度传感器均失效	1. The AC charging port temperature sensor is abnormal or the wiring harness is abnormal.1.慢充口温度传感器异常或者线束异常

Troubleshooting steps故障诊断步骤

①General inspection一般检查
1. Power state is "OFF", disconnect the negative terminal of the 12V battery.电源状态“OFF”，断开蓄电池负极。 2. Check whether the low-voltage wiring harness of the charging socket is damaged or broken.检查充电插座低压线束是否存在损坏、断裂等现象。 3. Check whether the low-voltage wiring harness connector of the charging socket is connected or damaged.检查充电插座低压线束接插件是否存在虚接、损坏等现象。 Are the test results normal?检查结果是否正常？ Yes是 Go to step 2.去步骤2。 No否 Repair or replace the low-voltage wiring harness or connector of the DC fast charging socket.维修或更换快充插座低压线束或接插件。
②Check charging socket L1/N temperature signal harness检查充电插座L1/N温度信号线束
	1. Power state is "OFF", disconnect the negative terminal of the 12V battery.电源状态“OFF”，断开蓄电池负极。 2. Disconnect the vehicle controller harness connector FB41/FB42 and the charging socket low-voltage harness connector CS04.断开整车控制器线束接插件FB41/FB42和充电插座低压线束接插件CS04。 3. Use a digital multimeter to measure the resistance between pin 22 of FB41 and pin 3 of CS04.用数字万用表测量FB41的22号针脚与CS04的3号针脚之间的电阻。 Standard resistance value: <1标准电阻值：＜1 Ω
	d. Use a digital multimeter to measure the resistance between pin 62 of FB42 and pin 5 of CS04.d.用数字万用表测量FB42的62号针脚与CS04的5号针脚之间的电阻。 Standard resistance value: <1标准电阻值：＜1 Ω Are the test results normal?检查结果是否正常？ Yes是 Go to step 3.去步骤3。 No否 Repair or replace the charging socket L1/N temperature signal harness.维修或更换充电插座L1/N温度信号线束。
③Check charging socket temperature sensor ground harness检查充电插座温度传感器接地线束
	1. Power state is "OFF", disconnect the negative terminal of the 12V battery.电源状态“OFF”，断开蓄电池负极。 2. Disconnect the vehicle controller harness connector FB41 and the charging socket low-voltage harness connector CS04.断开整车控制器线束接插件FB41和充电插座低压线束接插件CS04。 3. Use a digital multimeter to measure the resistance between pin 17 of FB41 and pin 4 of CS04.用数字万用表测量FB41的17号针脚与CS04的4号针脚之间的电阻。 Standard resistance value: <1标准电阻值：＜1 Ω Are the test results normal?检查结果是否正常？ Yes是 Go to step 4.去步骤4。 No否 Repair or replace the charging socket temperature sensor ground harness.维修或更换充电插座温度传感器接地线束。
④Replace charging socket更换充电插座
1. Replace the charging socket with a new one and check whether the fault code and symptoms are eliminated.更换新的充电插座，检查故障码及症状是否排除。 Are the test results normal?检查结果是否正常？ Yes是 Fault resolved.故障排除。 No否 Go to step 5.去步骤5。
⑤Replace vehicle controller更换整车控制器
1. Replace the vehicle controller with a new one and check whether the fault code and symptoms are eliminated.更换新的整车控制器，检查故障码及症状是否排除。 Are the test results normal?检查结果是否正常？ Yes是 Fault resolved.故障排除。 No否 Look for causes from other symptoms.从其他症状查找原因。   Caution:注意： ♦  After replacing the vehicle controller, you need to use a diagnostic tool to recalibrate the vehicle controller.更换整车控制器后，需用诊断仪对整车控制器重新标定。